Comet C/2011 L4 (PANSTARRS) Discovered by Asteroid Telescope
Discovery image of the newfound comet C/2011 L4 (PANSTARRS), taken by Hawaii's Pan-STARRS 1 telescope.
Comet C/2012 S1 (ISON)
The comet that may put on a spectacular light show during a November date with the Sun, was observed by the Deep Impact mission. The spacecraft has also had close fly-bys of comet's Tempel 1 and Hartley 2 and scientific observations of Garradd.
Comet ISON in Telescope View
This still from a NASA video identifies comet C/2012 S1 (ISON), better known as Comet ISON, in a telescope image.
Comet ISON in Night Sky
Skywatcher Vernon Dye took this shot of Comet ISON on Jan. 8, 2012. Comet ISON c/2012 S1 is currently in the Constellation of Gemini, moving between the head of the Twins Castor and Pollux.
Newly Discovered Comet C/2012 S1 (ISON)
This image shows the newfound comet C/2012 (ISON) as seen by the Remanzacco Observatory in Italy. The image, taken by amateur astronomers Ernesto Guido, Giovanni Sostero and Nick Howes, is a confirmation view of the comet, which was first discovered by Vitali Nevski (Vitebsk, Belarus) and Artyom Novichonok (Kondopoga, Russia). Image released Sept. 24, 2012.
Comet ISON Seen by Messenger Probe on Nov. 19, 2013
Image of comet ISON taken by NASA's Messenger probe during its closest approach to Mercury on Nov. 19, 2013. At that time, ISON was approximately 22.5 million miles (36.2 million kilometers) from Messenger and 42.1 million miles (67.8 million km) from the sun.
NASA Releases Comet ISON Images from STEREO
Comet ISON entered the view of NASA's Solar Terrestrial Relations Observatory on Nov. 21, 2013, where it can be seen with Earth, Mercury and comet 2P/Encke.
Comet 2P/Encke During Closest Approach to Mercury
This Messenger spacecraft image shows comet 2P/Encke during its closest approach to Mercury. At that time, Encke was approximately 2.3 million miles (3.7 million kilometers) from Messenger and 32.7 million miles (52.6 million kilometers) from the Sun. The tail was oriented nearly side on to Messenger in this image and is seen to stretch several degrees from the comet’s bright coma in the direction away from the Sun. This image was released Nov. 25, 2013.